U.S. patent application number 16/299847 was filed with the patent office on 2019-07-11 for autonomous driving vehicle, method of stopping autonomous driving vehicle, and recording medium.
The applicant listed for this patent is Panasonic Intellectual Property Corporation of America. Invention is credited to NAOYUKI HARADA, SHUHEI MATSUI, HIDEO UMETANI, TAKUYA YAMAGUCHI.
Application Number | 20190212738 16/299847 |
Document ID | / |
Family ID | 63792353 |
Filed Date | 2019-07-11 |
United States Patent
Application |
20190212738 |
Kind Code |
A1 |
UMETANI; HIDEO ; et
al. |
July 11, 2019 |
AUTONOMOUS DRIVING VEHICLE, METHOD OF STOPPING AUTONOMOUS DRIVING
VEHICLE, AND RECORDING MEDIUM
Abstract
An autonomous driving vehicle includes a main vehicle part, a
processor, and a memory storing thereon a computer program, which
when executed by the processor, causes the processor to perform
operations. The operations include detecting a gesture made, to try
to stop the main vehicle part, by a person present near a road on
which the main vehicle part is running, determining whether there
is a passenger in the main vehicle part, and controlling autonomous
driving of the main vehicle part. In a case where it is determined
that there is no passenger in the main vehicle part, when a person
making the gesture is detected, the controlling controls the main
vehicle part to stop near the person.
Inventors: |
UMETANI; HIDEO; (Kanagawa,
JP) ; HARADA; NAOYUKI; (Osaka, JP) ;
YAMAGUCHI; TAKUYA; (Osaka, JP) ; MATSUI; SHUHEI;
(Osaka, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Panasonic Intellectual Property Corporation of America |
Torrance |
CA |
US |
|
|
Family ID: |
63792353 |
Appl. No.: |
16/299847 |
Filed: |
March 12, 2019 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
PCT/JP2017/044809 |
Dec 14, 2017 |
|
|
|
16299847 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B60Q 1/503 20130101;
B60W 2552/00 20200201; G06Q 10/02 20130101; G05D 1/0088 20130101;
G06K 9/00791 20130101; G05D 1/0257 20130101; B60W 60/00253
20200201; G05D 1/0016 20130101; B60W 2540/049 20200201; B60W
60/0025 20200201; G06Q 50/30 20130101; G06K 9/00355 20130101; B60W
2555/60 20200201; B60W 30/181 20130101; G05D 1/027 20130101; G05D
2201/0213 20130101; G08G 1/202 20130101; B60W 2554/00 20200201;
B60W 2540/01 20200201; G05D 1/0231 20130101; B60W 30/00 20130101;
B60W 2540/041 20200201; G05D 1/0212 20130101; G05D 1/0278
20130101 |
International
Class: |
G05D 1/00 20060101
G05D001/00; G08G 1/00 20060101 G08G001/00; G05D 1/02 20060101
G05D001/02; B60Q 1/50 20060101 B60Q001/50 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 14, 2017 |
JP |
2017-080590 |
Claims
1. An autonomous driving vehicle comprising: a processor; and a
memory storing thereon a computer program, which when executed by
the processor, causes the processor to perform operations
including: detecting a gesture to stop the autonomous driving
vehicle, which is made by a person present near a road on which the
autonomous driving vehicle is running; determining whether there is
a passenger in the autonomous driving vehicle; and controlling the
autonomous driving vehicle, wherein in a case where it is
determined that there is no passenger in the autonomous driving
vehicle, when a person making the gesture is detected, the
autonomous driving vehicle is controlled to stop near the
person.
2. The autonomous driving vehicle according to claim 1, wherein
detecting of the gesture detects the gesture made by the person
present on either one of a left-hand side or a right-hand side of
the road.
3. The autonomous driving vehicle according to claim 1, wherein the
operations further comprising: detecting the number of lanes on the
road in the same running direction, wherein in the detecting the
gesture, in a case where it is detected that the number of lanes is
1, the detecting detects the gesture made by the person present on
the right-hand side and the left-hand side of the road, while in a
case where it is detected that the number of lanes is 2 or greater,
the detecting detects the gesture made by the person present on one
of the right-hand side and the left-hand side of the road.
4. The autonomous driving vehicle according to claim 3, wherein in
the controlling, in a case where it is detected that the number of
lanes is 2 or greater and further it is detected that there is no
passenger in the autonomous driving vehicle, the autonomous driving
vehicle is controlled to run on a lane located closest to a
sidewalk of the two or more lanes.
5. The autonomous driving vehicle according to claim 1, wherein the
operations further comprising: detecting whether a U-turn on the
road is prohibited, in the detecting of the gesture, in a case
where it is detected that the U-turn is prohibited on the road, the
detecting detects the gesture made by the person present on one of
the left-hand side or the right-hand side of the road.
6. The autonomous driving vehicle according to claim 1, wherein the
detecting of the gesture detects a second gesture made by the
person to cancel stopping the autonomous driving vehicle, and in
the controlling, in a case where after a person making the gesture
is detected, the detecting further detects the second gesture made
by the person, the autonomous driving vehicle is controlled to
continue running.
7. The autonomous driving vehicle according to claim 1, wherein the
operations further comprising: providing a notification toward the
outside of the autonomous driving vehicle, in the providing of the
notification, in a case where it is determined that there is no
passenger in the autonomous driving vehicle, when a person making
the gesture is detected, the providing of the notification provides
a notification indicating that the person is detected.
8. The autonomous driving vehicle according to claim 1, wherein the
operations further comprise: communicating with a vehicle dispatch
system that patches another autonomous driving vehicle to a
specified location, in the communicating, in a case where it is
determined that there is a passenger in the autonomous driving
vehicle, when a person making the gesture is detected, the
communicating outputs a vehicle dispatch request to request a
vehicle to be dispatched to a location where the person is
present.
9. A method of stopping an autonomous driving vehicle, comprising
stopping an autonomous driving vehicle such that in a case where it
is determined that there is no passenger in the autonomous driving
vehicle, when a gesture is detected which is made, to stop the
autonomous driving vehicle, by a person present near a road on
which the autonomous driving vehicle is running, the autonomous
driving vehicle is stopped near the person who made the
gesture.
10. A non-transitory recording medium storing thereon a program,
which when executed, causes a computer to execute the method of
stopping an autonomous driving vehicle according to claim 9.
Description
BACKGROUND
1. Technical Field
[0001] The present disclosure relates to an autonomous driving
vehicle, a method of stopping an autonomous driving vehicle, and a
recording medium.
2. Description of the Related Art
[0002] In recent years, an autonomous driving vehicle capable of
autonomously driving without a driving operation by a driver has
been developed (see, for example, Japanese Unexamined Patent
Application Publication No. 2015-133050). Employing such an
autonomous driving vehicle as a taxi has also been
investigated.
SUMMARY
[0003] One non-limiting and exemplary embodiment provides a
technique of allowing a potential passenger wanting to catch a taxi
to efficiently get in an autonomous driving vehicle.
[0004] In one general aspect, the techniques disclosed here feature
an autonomous driving vehicle including a main vehicle part, a
processor, and a memory storing thereon a computer program, which
when executed by the processor, causes the processor to perform
operations including detecting a gesture made, to try to stop the
main vehicle part, by a person present near a road on which the
main vehicle part is running, determining whether there is a
passenger in the main vehicle part, and controlling autonomous
driving of the main vehicle part, wherein in a case where it is
determined that there is no passenger in the main vehicle part,
when a person making the gesture is detected, the controlling
controls the main vehicle part to stop near the person.
[0005] According to the aspect, it is possible to allow a potential
passenger wanting to catch a taxi to efficiently get in an
autonomous driving vehicle.
[0006] It should be noted that general or specific embodiments may
be implemented as a system, a method, an integrated circuit, a
computer program, a storage medium, or any selective combination
thereof.
[0007] Additional benefits and advantages of the disclosed
embodiments will become apparent from the specification and
drawings. The benefits and/or advantages may be individually
obtained by the various embodiments and features of the
specification and drawings, which need not all be provided in order
to obtain one or more of such benefits and/or advantages.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a schematic diagram roughly illustrating a
configuration of a vehicle dispatch system according to an
embodiment;
[0009] FIG. 2 is a schematic diagram illustrating an example of an
autonomous driving vehicle according to an embodiment;
[0010] FIG. 3 is a block diagram illustrating an example of a
functional configuration of an autonomous driving vehicle according
to an embodiment;
[0011] FIG. 4 is a flow chart illustrating a flow of a method of
stopping an autonomous driving vehicle;
[0012] FIG. 5 is a flow chart illustrating an acceptance mode
according to an embodiment;
[0013] FIG. 6 is a flow chart illustrating a refusal mode according
to an embodiment;
[0014] FIG. 7 is a schematic diagram illustrating an example of a
captured image captured by a first camera in a situation in which
an autonomous driving vehicle is running according to an
embodiment; and
[0015] FIG. 8 is a schematic diagram illustrating an example of a
captured image captured by a first camera in a situation in which
an autonomous driving vehicle is running according to an
embodiment.
DETAILED DESCRIPTION
[0016] Underlying Knowledge Forming Basis of the Present
Disclosure
[0017] The present inventor has investigated feasibility of
employing an autonomous driving vehicle as a taxi. According to
definitions by the Japanese government or the National Highway
Traffic Safety Administration of the USA, a level-4 autonomous
driving vehicle is supposed to be capable of driving fully
autonomously, and thus a passenger is not supposed to be involved
in any driving operation. That is, in a case where a level-4
autonomous driving vehicle is employed as a taxi, the autonomous
driving vehicle itself needs to determine whether there is a
potential passenger on a road, and if there is a potential
passenger, the autonomous driving vehicle needs to stop near the
potential passenger. However, if the autonomous driving vehicle
stops each time a potential passenger is detected even in a state
in which a passenger is already present in the autonomous driving
vehicle, an inefficient situation occurs. In view of the above, the
present disclosure provides a technique that can solve the problem
described above.
[0018] An aspect of the present disclosure provides an autonomous
driving vehicle including a main vehicle part, a processor, and a
memory storing thereon a computer program, which when executed by
the processor, causes the processor to perform operations including
detecting a gesture made, to try to stop the main vehicle part, by
a person present near a road on which the main vehicle part is
running, determining whether there is a passenger in the main
vehicle part, and controlling autonomous driving of the main
vehicle part, wherein in a case where it is determined that there
is no passenger in the main vehicle part, when a person making the
gesture is detected, the controlling controls the main vehicle part
to stop near the person.
[0019] An aspect of the present disclosure provides a method of
stopping an autonomous driving vehicle, including stopping a main
vehicle part of the autonomous driving vehicle such that in a case
where it is determined that there is no passenger in the main
vehicle part of the autonomous driving vehicle, when a gesture is
detected which is made, to try to stop the main vehicle part, by a
person present near a road on which the main vehicle part is
running, the main vehicle part is stopped near the person who made
the gesture.
[0020] An aspect of the present disclosure provides a
non-transitory recording medium storing thereon a program, which
when executed, causes a computer to execute the above-described
method of stopping an autonomous driving vehicle.
[0021] Thus, in a case where it is determined that there is no
passenger in the main vehicle part of the autonomous driving
vehicle, when a gesture made to try to stop the main vehicle part
is detected, the main vehicle part is stopped near the person who
made the gesture. However, in a case where there is a passenger in
the main vehicle part, the autonomous driving vehicle continues
running without stopping. That is, it is possible to prevent the
autonomous driving vehicle from stopping in order to try to get a
potential passenger into the autonomous driving vehicle when there
is already a passenger in the autonomous driving vehicle. This
makes it possible to efficiently get a potential passenger in the
autonomous driving vehicle.
[0022] The detecting the gesture may detect the gesture made by the
person present on either one of a left-hand side or a right-hand
side of the road.
[0023] This makes it possible to set, as a detection area, one of
the right-hand side and the left-hand side of the road, and thus it
is possible to achieve an increase in the speed of the detection
process. For example, in countries in which vehicles are supposed
to run on left-hand sides of roads, in many cases, potential
passengers are present on left-hand sides of roads. Therefore, by
setting the left-hand side of the road as the detection area of the
gesture detector, it becomes possible to achieve an increase in
speed of the detection process.
[0024] In the autonomous driving vehicle, the operations may
further include detecting the number of lanes on the road in the
same running direction, wherein in the detecting the gesture, in a
case where it is detected that the number of lanes is 1, the
detecting may detect the gesture made by the person present on the
right-hand side and the left-hand side of the road, while in a case
where it is detected that the number of lanes is 2 or greater, the
detecting may detect the gesture made by the person present on one
of the right-hand side and the left-hand side of the road.
[0025] This makes it possible to adjust the detection area in the
detecting of the gesture depending on the number of lanes.
[0026] For example, in a case where the number of lanes in the same
running direction is 1, the total width of the road is likely to be
relatively small. More specifically, when a road is a one-way road
or a road with one lane on each side, the number of lanes in the
same running direction is detected as 1. When the road is a one-way
road, the autonomous driving vehicle running on a lane of this road
is allowed to deal with potential passengers present on the
right-hand side and the left-hand side of the road. When the road
is a road with one lane on each side, the autonomous driving
vehicle is allowed to make a U-turn to deal with a potential
passenger present on a side of an opposite lane.
[0027] On the other hand, in a case where the number of lanes in
the same running direction is greater than or equal to 2, the total
width of the road is relatively large. Therefore, it is not
desirable for the autonomous driving vehicle to deal with both
potential passengers present on the right-hand side and the
left-hand side of the road, because, for example, moving to the
other lane may interfere with running of another vehicle.
[0028] The capability of adjusting the detection area in the
detecting of the gesture depending on the number of lanes as
described above makes it possible to set the detection area
properly depending on the situation.
[0029] In the autonomous driving vehicle, in the controlling, in a
case where it is detected that the number of lanes is 2 or greater
and further it is detected that there is no passenger in the main
vehicle part, the controlling may control the main vehicle part to
run on a lane located closest to a sidewalk of the two or more
lanes.
[0030] In almost all cases, potential passengers are present on a
sidewalk. Therefore, when it is determined that there is no
passenger in the main vehicle part, the main vehicle part is
running on a lane located closest to a sidewalk of two or more
lanes, that is, the main vehicle part is running on a lane closest
to locations of potential passengers. This makes is possible to
smoothly access a potential passenger.
[0031] In the autonomous driving vehicle, the operations may
further include detecting whether a U-turn on the road is
prohibited, wherein in the detecting of the gesture, in a case
where it is detected that the U-turn is prohibited on the road, the
detecting may detect the gesture made by the person present on one
of the left-hand side or the right-hand side of the road.
[0032] This makes it possible to adjust the detection area in the
detecting of the gesture depending on whether the U-turn is
prohibited. More specifically, when the U-turn is prohibited, the
autonomous driving vehicle is not allowed to move to an opposite
lane. That is, even when there is a potential passenger on a side
of a lane opposite to the lance on which the autonomous driving
vehicle is running, the autonomous driving vehicle is not allowed
to deal with the potential passenger. In this case, the detection
area of the gesture detector may be set to an area including only
one of the right-hand side and the left-hand side of the road.
[0033] In the autonomous driving vehicle, the detecting of the
gesture may detect a second gesture made by the person to try to
cancel stopping the main vehicle part, and in the controlling, in a
case where after a person making the gesture is detected, the
detecting further detects the second gesture made by the person,
the controlling may control the main vehicle part to continue
running.
[0034] Thus, in the case where after the gesture detector detects a
person making a gesture, the gesture detector further detects the
second gesture made by the person, the running of the main vehicle
part is continued. That is, the intention of the potential
passenger is recognized, and the main vehicle part is controlled to
run continuously.
[0035] In the autonomous driving vehicle, the operations may
further include providing a notification toward the outside of the
main vehicle part, wherein in the providing of the notification, in
a case where it is determined that there is no passenger in the
main vehicle part, when a person making the gesture is detected,
the providing of the notification may provide a notification
indicating that the person is detected.
[0036] By providing a notification by the notifier to indicate that
a person making a gesture is detected, it becomes possible to
inform the potential passenger that the gesture is caught by the
autonomous driving vehicle.
[0037] In the autonomous driving vehicle, the operations may
further include communicating with a vehicle dispatch system that
patches another autonomous driving vehicle to a specified location
wherein in the communicating, in a case where it is determined that
there is a passenger in the main vehicle part, when a person making
the gesture is detected, the communicating may output a vehicle
dispatch request to request a vehicle to be dispatched to a
location where the person is present.
[0038] Thus, in the case where the determiner determines that there
is a passenger in the main vehicle part, that is, in a situation in
which it is not allowed to accept a potential passenger, if the
gesture detector detects a person making a gesture, the
communication part outputs, to the vehicle dispatch system, a
vehicle dispatch request for displaying a vehicle to a location of
this person. In response, the vehicle dispatch system dispatches
another autonomous driving vehicle to the potential passenger.
[0039] It should be noted that general or specific embodiments may
be implemented as a system, a method, an integrated circuit, a
computer program, a computer-readable storage such as a CD-ROM
disk, or any selective combination of a system, a method, an
integrated circuit, a computer program, and a storage medium.
[0040] The autonomous driving vehicle according to an embodiment of
the present disclosure is described in further detail below with
reference to drawings.
[0041] Note that any embodiment described below is provided to
illustrate an example. In the following embodiments, values,
shapes, materials, constituent elements, locations of elements,
manners of connecting elements, steps, the order of steps, and the
like are described by way of example but not limitation. Among
constituent elements described in the following embodiments, those
constituent elements that are not described in independent claims
indicating highest-level concepts of the present disclosure are
optional.
1. Configuration
[0042] FIG. 1 is a schematic diagram roughly illustrating a
configuration of a vehicle dispatch system 100 according to the
present embodiment. The vehicle dispatch system 100 is a system in
which autonomous driving vehicles 1 used as taxis are dispatched to
particular locations. More specifically, the vehicle dispatch
system 100 includes an information terminal 101 such as a personal
computer, a tablet terminal, or the like. This information terminal
101 is capable of communicating with each autonomous driving
vehicle 1 via a network N. The information terminal 101 outputs a
vehicle dispatch command to each autonomous driving vehicle 1 to
dispatch it to a particular location. Each autonomous driving
vehicle 1 autonomously runs toward the particular location
according to the vehicle dispatch command. Note that the vehicle
dispatch system 100 may include a vehicle that needs to be operated
by a human driver. In this case, based on a vehicle dispatch
command received by the vehicle, the human driver drives the
vehicle toward the specified location.
[0043] FIG. 2 is a schematic diagram illustrating an example of the
autonomous driving vehicle 1 according to the present embodiment.
As shown in FIG. 2, the autonomous driving vehicle 1 includes a
main vehicle part 10, and an automatic driving system 20 for
autonomously driving the main vehicle part 10. The automatic
driving system 20 is installed in the main vehicle part 10. The
main vehicle part 10 includes a sheet 11 for a passenger to sit on.
An operation unit 12 to be operated by a passenger is installed on
a dashboard located in front of the sheet 11. The operation unit 12
is, for example, a touch panel configured to be used by a passenger
to specify a destination.
[0044] A notifier 13 for displaying various kind of information is
disposed on a roof of the main vehicle part 10. Using this notifier
13, it is possible to notify people present outside the autonomous
driving vehicle 1 of various kinds of information.
[0045] FIG. 3 is a block diagram illustrating an example of a
functional configuration of the autonomous driving vehicle 1
according to the present embodiment. As shown in FIG. 3, the main
vehicle part 10 of the autonomous driving vehicle 1 includes a
propulsion system 110, a sensor system 120, a control system 130,
and peripheral devices 140.
[0046] The propulsion system 110 is a system that provides a power
movement to the main vehicle part 10. More specifically, the
propulsion system 110 includes a driving source 111 and a
transmission 112.
[0047] The driving source 111 may be an internal-combustion engine,
an electric motor, a steam engine, a Stirling engine, or the like.
One of these may be used as a single apparatus or a combination
thereof may be used as the driving source 111. For example, in a
case where the autonomous driving vehicle 1 is a gas-electric
hybrid vehicle, the driving source 111 is realized by a combination
of a gasoline engine and an electric motor.
[0048] The transmission 112 is configured to transmit a mechanical
power to wheels from the driving source 111. For example, the
transmission 112 includes a gearbox, a clutch, a differential gear,
a drive shaft, and/or other elements.
[0049] The sensor system 120 detects information regarding an
environment in which the main vehicle part 10 is located. More
specifically, the sensor system 120 includes several sensors to
detect information regarding the environment. For example, the
sensor system 120 includes a GPS module 121, an inertial
measurement unit 122, an attribute unit 123, a first camera 124,
and a second camera 125.
[0050] The GPS module 121 is a module that estimates
latitude/longitude of the main vehicle part 10 via GPS (Global
Positioning System). More specifically, the GPS module 121
estimates the position of the main vehicle part 10 with respect to
the earth based on satellite-based positioning data. For example,
the automatic driving system 20 estimates the position of a traffic
lane line of a road on which the main vehicle part 10 is running by
using the GPS module 121 together with map data.
[0051] The inertial measurement unit (IMU) 122 includes a set of
sensors for detecting changes in the position and the direction of
the main vehicle part 10 based on the inertia acceleration. The
inertial measurement unit 122 may include, for example, an
accelerometer and a gyroscope.
[0052] The attribute unit 123 determines attributes such as a
distance, an altitude, a direction, or a velocity of an object
located around the main vehicle part 10. More specifically, the
attribute unit 123 includes a radar unit that determines a
distance, an altitude, a direction, or a velocity of an object
using a radio wave. The attribute unit 123 may include other
systems similar to the radar. An example of such another system is
a lidar system that detect, using light, an object existing in an
environment in which the main vehicle part 10 is located. It is
possible to capture a 3-dimensional (3D) image by using both
scanning and non-scanning lidar systems together. A "3D gated
viewing laser radar" is an example of a scanning laser ranging
system using a pulsed laser and a high-speed gated camera.
[0053] The first camera 124 is an arbitrary camera (for example, a
still camera, a video camera, etc.) adapted to capture an image of
an environment in which the main vehicle part 10 is located. More
specifically, the first camera 124 is installed in a front part of
the main vehicle part 10 (see FIG. 2) such that the first camera
124 is allowed to capture an image of a scene ahead of the main
vehicle part 10.
[0054] The second camera 125 is an arbitrary camera (for example, a
still camera, a video camera, etc.) adapted to capture an image of
the inside of the main vehicle part 10. More specifically, the
second camera 125 is installed in the front part of the main
vehicle part 10 (see FIG. 2) such that the second camera 125 is
allowed to capture an image of the inside of the main vehicle part
10.
[0055] The control system 130 controls an operation of the main
vehicle part 10 and operations of constituent elements of the main
vehicle part 10. More specifically, the control system 130 may
include a steering unit 131, a throttle unit 132, a brake unit 133,
a navigation unit 134 and an obstacle avoidance system 135.
[0056] The steering unit 131 is a mechanism configured to adjust
the orientation or the direction of the main vehicle part 10.
[0057] The throttle unit 132 is a mechanism configured to control
the operation speed and the acceleration of the driving source 111
thereby controlling the speed and the acceleration of the main
vehicle part 10.
[0058] The brake unit 133 is a mechanism configured to reduce the
speed of the main vehicle part 10. For example, the brake unit 133
may reduce the speed of the wheels using friction. The brake unit
133 may be of a regeneration type, and kinetic energy of wheels may
be converted into a current.
[0059] The navigation unit 134 is configured to determine a driving
route for the main vehicle part 10. The navigation unit 134 may be
configured to dynamically change the driving route during driving
of the main vehicle part 10. In some examples, the navigation unit
134 may be configured to determine the driving route of the main
vehicle part 10 by using the GPS module 121 together with one or
more pieces of predetermined map data.
[0060] The obstacle avoidance system 135 identifies an obstacle
existing in an environment in which the main vehicle part 10 is
located, evaluates the obstacle, and gets through the obstacle by
performing avoidance or other actions.
[0061] The control system 130 may have a sensor fusion algorithm, a
computer vison system, and/or the like. The sensor fusion algorithm
is, for example, an algorithm capable of being executed by a
processor 22 in the automatic driving system 20. The sensor fusion
algorithm is configured to receive, as an input, data from the
sensor system 120. The sensor fusion algorithm provides various
assessments based on data supplied from the sensor system 120,
wherein the assessments include, for example, assessments of
individual objects and/or features existing in an environment in
which main vehicle part 10 is located, an assessment of a specific
situation, and/or a collision that may occur in the specific
situation.
[0062] The computer vision system is configured to process and
analyze an image captured by the first camera 124 to identify
objects and/or features in an environment in which the main vehicle
part 10 is located, wherein the objects and/or features include,
for example, lane information, a traffic signal, an obstacle, or
the like. The computer vision system may use an object recognition
algorithm, a structure from motion (SFM) algorithm, a video
tracking, or other computer vision techniques.
[0063] The peripheral device 140 is configured to make it possible
for the main vehicle part 10 to interact with an external device,
another autonomous driving vehicle, and/or a passenger. More
specifically, the peripheral device 140 includes, for example, an
operation unit 12, a notifier 13, and a communication part 141.
[0064] The operation unit 12 is a system that functions such that
when the operation unit 12 is operated by a passenger to input
various instructions such as a command specifying a destination,
the operation unit 12 accepts the various instructions. More
specifically, the operation unit 12 is, for example, a touch panel.
Alternatively, the operation unit 12 may be a voice input
device.
[0065] The notifier 13 is an apparatus that provides information to
people located outside the autonomous driving vehicle 1. More
specifically, the notifier 13 includes an electronic bulletin
board, a liquid crystal monitor, or the like and displays various
kinds of information thereby providing visual information to people
located outside the autonomous driving vehicle 1. Note that the
notifier 13 may be an apparatus that provides various kind of
information via a voice/sound.
[0066] The communication part 141 is a system capable of wirelessly
communicating with other autonomous driving vehicles and the
information terminal 101 via the network N. More specifically, the
communication part 141 includes an antenna and a chipset for
communicating with the network N. The chipset may be of a wireless
communication type (for example, a protocol) capable of being
generally implemented, and may be configured such that
communication is possible according to one or more of standards
including Bluetooth (registered trademark), a communication
protocol described in IEEE802.11 (including all revised versions of
IEEE802.11), a cellular technique (GSM (registered trademark),
CDMA, UMTS, EV-DO, WiMAX, LTE, etc.), Zigbee, dedicated short range
communication (DSRC), and radio frequency identification (RFID)
communication.
[0067] The automatic driving system 20 is a controller that
controls operations of respective constituent elements of the main
vehicle part 10 thereby autonomously driving the main vehicle part
10. More specifically, the automatic driving system 20 includes a
memory 21 and a processor 22.
[0068] The memory 21 may include one or more volatile storage
components and/or nonvolatile storage components such as an
optical, magnetic, and/or organic storages. The memory 21 may be
fully or partially embedded in the processor 22. The memory 21 may
include a program executable by the processor 22 to realize an
autonomous driving function according to the present embodiment.
The memory 21 also stores map data. The map data includes road map
information, lane information indicating the number of lanes of a
road, intersection information indicating a type of an
intersection, speed limit information indicating a speed limit, and
other information such as regulation information indicating a
traffic regulation. The map data may be stored in advance in the
memory 21. The map data may be updated such that each time latest
map data is acquired from the network N via the communication part
141, the acquired map data is stored in the memory 21.
[0069] Furthermore, the memory 21 also stores reference gesture
information used as a reference in identifying a gesture of hailing
a taxi (a vehicle-stop-request gesture). The reference gesture
information is data indicating a standard vehicle-stop-request
gesture generally used in a country or an area to hail a taxi. This
data includes position coordinates of respective feature points of
the vehicle-stop-request gesture, an image of a characteristic pose
of the vehicle-stop-request gesture, a moving image of the
vehicle-stop-request gesture, and the like.
[0070] For example, in Japan, a gesture of "raising one hand", or
"waving a raised hand" is a vehicle-stop-request gesture. Examples
of vehicle-stop-request gestures used in other countries or areas
include "opening a hand and waving it", "clasping a hand and
raising it", "raising only a forefinger and a middle finger and
shaking them", "raising only a middle finger and shaking it",
"raising only a thumb", "clasping a hand such that a thumb
protrudes between a forefinger and a middle finger", "beckoning",
"pointing a forefinger to a vehicle", and the like. Other gestures
may be used as vehicle-stop-request gestures. The reference gesture
information may be stored such that after a country or an area to
which the autonomous driving vehicle 1 is to be shipped is
determined, reference gesture information customized to adapt to
the determined country or area may be stored in the memory 21.
[0071] Furthermore, the memory 21 also stores second reference
gesture information used as a reference in identifying a
cancellation gesture (a second gesture). The second reference
gesture information is data indicating a standard cancellation
gesture that is used to cancel a gesture for stopping a taxy
accepted by the autonomous driving vehicle 1. This data includes
position coordinates of respective feature points of the
cancellation gesture, an image of a characteristic pose of the
cancellation gesture, a moving image of the cancellation gesture,
and the like.
[0072] Any gesture different from the vehicle-stop-request gesture
may be employed as the cancellation gesture. Examples of
cancellation gestures include "crossing two arms", "shaking a head
from side to side", "turning his/her back", "moving apart from a
vehicle", and the like. In order to prevent a person displayed on a
street advertisement from being recognized as an actual person, a
motion which has no change for a predetermined period of time may
also be regarded as a cancellation gesture.
[0073] The processor 22 may include one or more general-purpose
processors and/or one or more dedicated processors (for example, an
image processor, a digital signal processor, or the like). In a
case where the processor 22 includes two or more processors, the
two or more processors may operate independently or in
cooperation.
[0074] The processor 22 reads out a program stored in the memory 21
and executes it thereby autonomously driving the main vehicle part
10. More specifically, based on various detection results input
from the sensor system 120, various kinds of information input from
the peripheral device 140, and various kinds of information stored
in the memory 21, the processor 22 controls the propulsion system
110 and the control system 130 thereby autonomously driving the
main vehicle part 10 to a destination while following traffic rules
and avoiding other objects (such as other vehicles, buildings,
persons, animals, etc.). The autonomous driving by the processor 22
may be controlled according to a known autonomous driving control
method.
[0075] In the autonomous driving of the autonomous driving vehicle
1, the processor 22 also executes a method of stopping the
autonomous driving vehicle 1.
2. Method of Stopping Autonomous Driving Vehicle
[0076] Next, the method of stopping the autonomous driving vehicle
1 executed by the automatic driving system 20 is described below.
FIG. 4, FIG. 5, and FIG. 6 are flow charts illustrating a flow of
the method of stopping the autonomous driving vehicle 1. In the
following description, it is assumed by way of example that the
autonomous driving vehicle 1 is used in Japan. That is, it is
assumed that vehicles are supposed to run on the left-hand side of
each road and "raising a hand" is used as the vehicle-stop-request
gesture.
[0077] As shown in FIG. 4, in step S1, the processor 22 of the
automatic driving system 20 determines whether a passenger is
present in the main vehicle part 10 in the course of the autonomous
driving. More specifically, based on an image of the inside of the
main vehicle part 10 captured by the second camera 125, the
processor 22 determines whether a passenger is present in the main
vehicle part 10. That is, the processor 22 and the second camera
125 together function as a determiner that determines whether a
passenger is present in the main vehicle part 10. In a case where
the processor 22 determines that no passenger is present in the
main vehicle part 10 (NO in step S1), the processor 22 proceeds to
a step S2 thereby entering an acceptance mode, while in a case
where it is determined that a passenger is present in the main
vehicle part 10 (YES in step S1), the processor 22 proceeds to a
step S3 thereby entering a refusal mode.
[0078] FIG. 5 is a flow chart illustrating a flow of the acceptance
mode according to an embodiment. The acceptance mode is a mode in
which the main vehicle part 10 is available to accept a passenger
into the inside thereof.
[0079] In step S20 in the acceptance mode, the processor 22
determines whether there are two or more lanes in a direction in
which the autonomous driving vehicle 1 is currently running. More
specifically, the processor 22 detects the number of lanes from an
image captured by the first camera 124 in the forward direction
from the main vehicle part 10. That is, the processor 22 and the
first camera 124 together function as a lane detector that detects
the number of lanes on a road in the running direction.
Alternatively, the processor 22 may detect the number of lanes
based on map data and ae current position detected by the GPS
module 121.
[0080] In a case where the processor 22 determines that the number
of lanes is greater than or equal to 2 (YES in step S20), the
process proceeds to step S21. In step S21, the processor 22
controls the main vehicle part 10 to run on a lane located closest
to a sidewalk of the two or more lanes. Note that the sidewalk
refers to an area which is adjacent to a roadway and in which a
pedestrian may be present. The sidewalk may include a side strip, a
shoulder, or the like. Running on such a lane makes it possible for
the main vehicle part 10 to easily stop when a potential passenger
G (see, for example, FIG. 7) is found.
[0081] FIG. 7 is a schematic diagram illustrating an example of a
captured image captured by the first camera 124 in a situation in
which the autonomous driving vehicle 1 is running according to an
embodiment. In the example shown in FIG. 7, the number of lanes in
the running direction is, by way of example, two. As shown in FIG.
7, the autonomous driving vehicle 1 is running on a lane L1, which
is closest, of two lanes L1 and L2, to a sidewalk W, that is, the
autonomous driving vehicle 1 is running on a leftmost side lane
L1.
[0082] In step S22, the processor 22 sets a detection area S in
which a gesture is to be detected such that an area including a
left-hand side of a road is selected from an image capture area R
of the first camera 124 and the selected area is set as the
detection area S. More specifically, as shown in FIG. 7, the
processor 22 selects, as the detection area S, an area which does
not include the right-side lane L2 and includes at least the
sidewalk W located on the left side of the lane L1. This makes it
possible to detect a vehicle-stop-request gesture made by a person
present on the left side of the road.
[0083] On the other hand, in a case where the processor 22
determines that the number of lanes is neither greater than nor
equal to 2 (NO in step S20), the processor 22 proceeds to step
S23.
[0084] FIG. 8 is a schematic diagram illustrating an example of a
captured image captured by the first camera 124 in a situation in
which the autonomous driving vehicle 1 is running according to an
embodiment. In this example shown in FIG. 8, the number of lanes in
the running direction is, by way of example, one. More
specifically, in FIG. 8, the autonomous driving vehicle 1 is
running on a road with one lane on each side.
[0085] In step S23, the processor 22 sets the detection area S such
that an area including a left-hand side and a right-hand side of
the road is selected from an image capture area R of the first
camera 124 and the selected area is set as the detection area S.
More specifically, the processor 22 sets, as the detection area S,
an area including at least a left-hand side sidewalk W1 and a
right-hand side road W2 of a road as shown in FIG. 8. This makes it
possible to detect a vehicle-stop-request gesture made by a person
present either on the left-hand side or on the right-hand side of
the road.
[0086] In step S24, the processor 22 determines whether a person
who is making a vehicle-stop-request gesture is detected within the
detection area S. More specifically, the processor 22 checks a
motion of a person present in the detection area S with the
reference gesture information stored in the memory 21 thereby
detecting a person making the vehicle-stop-request gesture. That
is, the first camera 124, the memory 21 and the processor 22
together function as a gesture detector that detects the
vehicle-stop-request gesture. In this checking, any checking method
may be employed as long as it is capable of determining whether a
motion of a person whose image is captured by the first camera 124
is a vehicle-stop-request gesture. For example, pattern matching
may be employed as a checking method. When the processor 22 detects
a person who is making a vehicle-stop-request gesture (YES in step
S24), the processor 22 proceeds to step S25, while in a case where
no person who is making a gesture for stopping a vehicle is
detected (NO in step S24), the present state is maintained.
[0087] If it is determined that a person making a
vehicle-stop-request gesture is detected, then, in step S25, the
processor 22 regards the person as a potential passenger G and
tracks this person within the image captured by the first camera
124. In the tracking, the position of the first camera 124 may be
controlled such that the potential passenger G is always within the
image capture area.
[0088] In step S26 the processor 22 controls the notifier 13 to
provide a notification indicating that the potential passenger G is
detected. As a result, the potential passenger G is notified that
the autonomous driving vehicle 1 has caught the
vehicle-stop-request gesture.
[0089] In step S27, the processor 22 checks a motion of the
potential passenger G being tracked within the captured image with
respect to the second reference gesture information stored in the
memory 21 thereby determining whether a cancellation gesture made
by the potential passenger G is detected. In this checking, any
checking method may be employed as long as it is capable of
determining whether a motion of a potential passenger G whose image
is captured by the first camera 124 is a cancellation gesture. For
example, pattern matching may be employed as a checking method. In
a case where no cancellation gesture made by the potential
passenger G is detected (NO in step S27), the processor 22 proceeds
to step S28, while in a case where a cancellation gesture made by
the potential passenger G is detected (YES in step S27), the
processor 22 proceeds to step S29.
[0090] In step S28, the processor 22 controls the operation of
constituent elements of the main vehicle part 10 such that the main
vehicle part 10 autonomously drives until the main vehicle part 10
stops near the potential passenger G. As a result, it becomes
possible for the potential passenger G to get in the autonomous
driving vehicle 1. After the potential passenger G gets into the
autonomous driving vehicle 1, the processor 22 terminates the
acceptance mode and controls the main vehicle part 10 to again
start autonomous driving.
[0091] Note that in a case where a potential passenger G is present
on a sidewalk W2 opposite to a lane L3 on which the autonomous
driving vehicle 1 as shown in FIG. 8, the processor 22 controls the
main vehicle part 10 to make a U-turn and move to an opposite lane
L4, the processor 22 then controls the main vehicle part 10 to stop
near the potential passenger G.
[0092] In step S29, the processor 22 invalidates the assumption
that the person is regarded as the potential passenger G,
terminates the acceptance mode, and controls the main vehicle part
10 to again start autonomous driving.
[0093] In the present embodiment described above, an explanation
has been given, by way of example, for the case where after the
autonomous driving vehicle 1 provides the notification, the
autonomous driving vehicle 1 stops near the potential passenger G.
However, the timing of providing the notification is not limited to
the example described above. For example, after the autonomous
driving vehicle 1 stops near the potential passenger G, the
notification may be provided.
[0094] In the present embodiment described above, an explanation
has also been given, by way of example, for the case where after
the autonomous driving vehicle 1 determines whether a cancellation
gesture is made, the autonomous driving vehicle 1 stops near the
potential passenger G. However, the timing of determining whether a
cancellation gesture is made is not limited to the example
described above. For example, after the autonomous driving vehicle
1 stops near the potential passenger G, the autonomous driving
vehicle 1 may determine whether a cancellation gesture is made.
[0095] FIG. 6 is a flow chart illustrating a flow of a refusal mode
according to an embodiment. The refusal mode is a mode in which
accepting a potential passenger G is refused when a passenger is
already present in the main vehicle part 10.
[0096] In step S30 in the refusal mode, the processor 22 determines
whether there are two or more lanes in a direction in which the
autonomous driving vehicle 1 is currently running. More
specifically, the processor 22 detects the number of lanes from an
image captured by the first camera 124 in the forward direction
from the main vehicle part 10.
[0097] In a case where the processor 22 determines that the number
of lanes is greater than or equal to 2 (YES in step S30), the
processor 22 proceeds to step S31. In step S31, the processor 22
sets, as the detection area S, an area including a left-hand side
of a road in an image capture area R of the first camera 124 as in
step S22.
[0098] On the other hand, in a case where the processor 22
determines that the number of lanes is neither greater than nor
equal to 2, (NO in step S30), the processor 22 proceeds to step
S32. In step S32, the processor 22 sets, as the detection area S,
an area including a left-hand side and a right-hand side of the
road in the image capture area R of the first camera 124 as in step
S23.
[0099] In step S33, the processor 22 determines whether a person
who is making a vehicle-stop-request gesture is detected within the
detection area S. In a case where the processor 22 detects a person
who is making a vehicle-stop-request gesture (YES in step S33), the
processor 22 proceeds to step S34, while in a case where no person
who is making a gesture for stopping a vehicle is detected (NO in
step S33), the present state is maintained.
[0100] In step S34, the processor 22 controls the communication
part 141 to output a vehicle dispatch request to dispatch a vehicle
to a location where the potential passenger G is present. More
specifically, the vehicle dispatch request includes a time at which
a potential passenger G is detected, and location data indicating a
location where the potential passenger G is present. When the
information terminal 101 in the vehicle dispatch system 100 accepts
the vehicle dispatch request via the network N, the information
terminal 101 outputs, to another autonomous driving vehicle 1, a
vehicle dispatch command to go to the location where the potential
passenger G is present. In this process, the processor 22 may
control the notifier 13 to provide a notification indicating that
the vehicle dispatch request has been output. As a result, the
potential passenger G is notified that the vehicle-stop-request
gesture has been transferred to another autonomous driving vehicle
1.
[0101] After the vehicle dispatch request is output, the processor
22 terminates the refusal mode and controls the main vehicle part
10 to again start autonomous driving.
3. Effects and Related Issues
[0102] The autonomous driving vehicle 1 according to the present
embodiment includes the main vehicle part 10, the gesture detector
(the first camera 124, the memory 21, and the processor 22) that
detects a gesture (a vehicle-stop-request gesture) made, to try to
stop the main vehicle part 10, by a person present near a road on
which the main vehicle part 10 is running, the determiner (the
processor 22 and the second camera 125) that determines whether
there is a passenger in the main vehicle part 10, and the
controller (the automatic driving system 20) that autonomously
drives the main vehicle part 10, wherein in a case where the
determiner determines that there is no passenger in the main
vehicle part 10, if the gesture detector detects a person making a
gesture, the controller controls the main vehicle part 10 to stop
near the person.
[0103] The method of stopping the autonomous driving vehicle 1
according to the present embodiment includes stopping a main
vehicle part of the autonomous driving vehicle 10 such that in a
case where it is determined that there is no passenger in the main
vehicle part 10 of the autonomous driving vehicle 1, when a gesture
(a vehicle-stop-request gesture) made, to try to stop the main
vehicle part, by a person present near a road on which the main
vehicle part is running, the main vehicle part is stopped near the
person who made the gesture.
[0104] The program according to an embodiment causes a computer to
execute the method of stopping an autonomous driving vehicle.
[0105] Thus, when it is determined that there is no passenger in
the main vehicle part 10 of the autonomous driving vehicle 1, if a
vehicle-stop-request gesture made in order to try to stop the main
vehicle part 10 is detected, the main vehicle part 10 is stopped
near the potential passenger G who made the vehicle-stop-request
gesture. When there is a passenger in the main vehicle part 10, the
autonomous driving vehicle 1 continues running without stopping.
That is, it is assumed that it is possible to prevent the
autonomous driving vehicle 1 from stopping in order to try to get a
potential passenger G into the autonomous driving vehicle 1 when
there is already a passenger in the autonomous driving vehicle 1.
This makes it possible to efficiently get a potential passenger G
into the autonomous driving vehicle 1.
[0106] The gesture detector may detect a vehicle-stop-request
gesture made by a person present on either one of a left-hand side
or a right-hand side of a road.
[0107] Thus, the gesture detector is capable of setting, as the
detection area, one of the right-hand side and the left-hand side
of the road, and thus it is possible to achieve an increase in the
speed of the detection process. For example, in countries in which
vehicles are supposed to run on left-hand sides of roads, in many
cases, potential passengers G are present on left-hand sides of
roads. Therefore, by setting the left-hand side of the road as the
detection area S of the gesture detector, it is possible to achieve
an increase in the speed of the detection process.
[0108] The autonomous driving vehicle 1 may include the lane
detector (the processor 22 and the first camera 124) that detects
the number of lanes on the road in the same running direction, and
in a case where the lane detector detects that the number of lanes
is 1, the gesture detector may detect a vehicle-stop-request
gesture made by a person present on the right-hand side and the
left-hand side of the road, while in a case where the lane detector
detects that the number of lanes is 2 or greater, the gesture
detector detects a vehicle-stop-request gesture made by a person
present on one of the right-hand side and the left-hand side of the
road.
[0109] This makes it possible to adjust the detection area S of the
gesture detector depending on the number of lanes.
[0110] For example, in a case where the number of lanes in the same
running direction is 1, the total width of the road is likely to be
relatively small. More specifically, when a road is a one-way road
or a road with one lane on each side, the number of lanes in the
same running direction is detected as 1. When the road is a one-way
road, the autonomous driving vehicle 1 running on a lane of this
road is allowed to deal with a potential passenger G present on the
right-hand side or the left-hand side of the road. When the road is
a road with one lane on each side, the autonomous driving vehicle 1
is allowed to make a U-turn to deal with a potential passenger G
present on a side of an opposite lane.
[0111] On the other hand, in a case where the number of lanes in
the same running direction is greater than or equal to 2, the total
width of the road is relatively large. Therefore, it is not
desirable for the autonomous driving vehicle 1 to deal with both
potential passengers G present on the right-hand side and the
left-hand side of the road, because, for example, moving to the
other lane may interfere with running of another vehicle.
[0112] The capability of adjusting the detection area of the
gesture detector depending on the number of lanes as described
above makes it possible to set the detection area properly
depending on the situation.
[0113] In a case where the lane detector detects that the number of
lanes is 2 or greater and furthermore the determiner determines
that there is no passenger in the main vehicle part, the controller
may control the main vehicle part to run on a lane L1 located
closest to a sidewalk W of the two or more lanes.
[0114] In almost all cases, potential passengers G are present on a
sidewalk W. Therefore, when it is determined that there is no
passenger in the main vehicle part 10, the main vehicle part 10 is
running on the lane L1 located closest to the sidewalk W of two or
more lanes L1, L2, that is, the main vehicle part 10 is running on
the lane L1 closest to locations of potential passengers G. This
makes is possible to smoothly access a potential passenger G.
[0115] The gesture detector may detect a second gesture (a
cancellation gesture) made by the person (the potential passenger
G) to try to cancel stopping the main vehicle part 10, and in a
case where after the gesture detector detects a person making a
vehicle-stop-request gesture, the gesture detector further detects
the cancellation gesture made by the person, the controller may
control the main vehicle part 10 to continue running.
[0116] Thus, in the case where after the gesture detector detects a
potential passenger G, the gesture detector further detects a
cancelation gesture made by this potential passenger G, the running
of the main vehicle part 10 is continued. That is, the intention of
the potential passenger G is recognized, and the main vehicle part
10 is controlled to run continuously.
[0117] The autonomous driving vehicle 1 may include the notifier 13
that provides a notification toward the outside of the main vehicle
part 10, and the controller may operate such that in a case where
the determiner determines that there is no passenger in the main
vehicle part, if the gesture detector detects a potential passenger
G, the controller controls the notifier 13 to provide a
notification indicating that the potential passenger G is
detected.
[0118] In the embodiments described above, by way of example, the
notifier 13 including the electronic bulletin board, the liquid
crystal monitor, or the like is installed on the roof of the main
vehicle part 10. Alternatively, a hazard lamp provided on the main
vehicle part 10 may be used as the notifier. In this case, by
blinking the hazard lamp, it is possible to provide a notification
to a potential passenger G.
[0119] In this case, the notifier 13 provides the notification
indicating that the potential passenger is detected, and thus the
potential passenger G is notified that the autonomous driving
vehicle 1 has caught the vehicle-stop-request gesture.
[0120] The autonomous driving vehicle 1 may include the
communication part 141 that communicates with the vehicle dispatch
system 100 that patches another autonomous driving vehicle 1 to a
particular location, and the controller may operate such that in a
case where the determiner determines that there is a passenger in
the main vehicle part 10, when the gesture detector detects a
person making a vehicle-stop-request gesture, the controller
controls the communication part 141 to output, to the vehicle
dispatch system 100, a vehicle dispatch request to a location where
the person is present.
[0121] Thus, in the case where the determiner determines that there
is a passenger in the main vehicle part 10, that is, in a situation
in which it is not allowed to accept a potential passenger G, if
the gesture detector detects a potential passenger G, the
communication part 141 outputs, to the vehicle dispatch system 100,
a vehicle dispatch request to a location where this potential
passenger G is present. Thus, the vehicle dispatch system 100
dispatches another autonomous driving vehicle 1 to the potential
passenger G.
Further Embodiments
[0122] Examples of techniques disclosed in the present description
have been described above with reference to embodiments. However,
the techniques according to the embodiments are not limited to the
examples described above. Modifications, replacements, additions,
deletions, or the like are possible. Furthermore, various parts or
elements of the embodiments may be combined to obtain another
embodiment.
[0123] For example, in the embodiments described above, by way of
example, the second camera 125 functions as a part of the
determiner that determined whether there is a passenger in the main
vehicle part 10. However, a sensor other than cameras may be
employed as a part of the determiner as long as it is possible to
determine whether there is a passenger in the main vehicle part 10.
Example of such sensors include a weight sensor, a human sensor,
etc. In a case where a weight sensor is used, the weight sensor may
be disposed in a seating plane of the sheet 11. Based on a result
of a detection by the weight sensor, the processor 22 is capable of
determining whether there is a passenger. On the other hand, in a
case where a human sensor is used, the human sensor may be disposed
in the main vehicle part 10 such that the space in the vehicle of
the main vehicle part 10 becomes a detection area. Based on a
result of a detection by the human sensor, the processor 22 is
capable of determining whether there is a passenger. Examples of
human sensors include a temperature sensor, an ultrasonic sensor,
an infrared sensor, etc.
[0124] In the embodiments described above, by way of example, the
first camera 124 functions as a part of the gesture detector that
detects a gesture made by a person. Alternatively, for example, a
radar unit, a lidar system, or the like may be used to detect a
gesture made by a person. In this case, the radar unit or the lidar
system functions as a part of the gesture detector.
[0125] In the embodiments described above, by way of example, when
a potential passenger G is present on the sidewalk W2 on the side
of the opposite lane, the main vehicle part 10 is controlled to
make a U-turn and move to a location near the potential passenger
G. However, by road traffic regulation, a U-turn is prohibited at
some locations. At such locations, even when there is a potential
passenger G, it is desirable not to make a U-turn.
[0126] For example, the processor 22 detects a U-turn prohibited
sign from an image captured by the first camera 124 in the forward
direction from the main vehicle part 10. That is, the processor 22
and the first camera 124 together function as the U-turn
prohibition detector that detects whether the U-turn is prohibited
on a road. In a case where the processor 22 detects that the U-turn
on a road is prohibited, the processor 22 may detect a
vehicle-stop-request gesture made by a person present on one of the
right-hand side and the left-hand side of the road.
[0127] This makes it possible to adjust the detection area S
depending on whether the U-turn is prohibited. More specifically,
when the U-turn is prohibited, the autonomous driving vehicle 1 is
not allowed to move to an opposite lane. That is, even when there
is a potential passenger G on a side of a lane opposite to the lane
on which the autonomous driving vehicle 1 is running, the
autonomous driving vehicle 1 is not allowed to deal with the
potential passenger G. In this case, the detection area S is set so
as to include only an area on the side of the lane in which the
autonomous driving vehicle 1 is running.
[0128] It is possible to detect whether a U-turn is prohibited on a
road by using regulation information described in the map data
stored in the memory 21 together with the GPS module 121.
[0129] In the embodiments described above, by way of example, the
determination as to whether a cancellation gesture is issued or not
is made before the autonomous driving vehicle 1 stops.
Alternatively, the determination as to whether a cancellation
gesture is issued or not may be made after the autonomous driving
vehicle 1 stops. In this case, in a case where a potential
passenger G does not get in the autonomous driving vehicle 1 in a
period of time with a predetermined length after the autonomous
driving vehicle 1 stops, it may be regarded that a cancellation
gesture has been issued.
[0130] In the embodiments described above, each constituent element
may be realized using dedicated hardware or may be realized by
executing software program corresponding to the constituent
element. Each constituent element may be realized by a program
execution unit such as a CPU, a processor or the like by reading
software program stored in a storage medium such a hard disk, a
semiconductor memory, or the like and executing the software
program. The software that realizes the autonomous driving vehicle
1 or the like according to each embodiment described above may be a
program described below.
[0131] That is, the program causes a computer to execute the method
of stopping an autonomous driving vehicle, the method including
stopping a main vehicle part of the autonomous driving vehicle such
that in a case where it is determined that there is no passenger in
the main vehicle part of the autonomous driving vehicle, when a
gesture is detected which is made, to try to stop the main vehicle
part, by a person present near a road on which the main vehicle
part is running, the main vehicle part is stopped near the person
who made the gesture.
[0132] The autonomous driving vehicle 1 and the method of stopping
the autonomous driving vehicle 1 according to one or more aspects
of the present disclosure have been described above with reference
to embodiments. However, the present disclosure is not limited to
these embodiments. It will be apparent to those skilled in the art
that various modifications may be applicable to the embodiments
without departing from the spirit and scope of the present
disclosure. Furthermore, constituent elements of different
embodiments may be combined. In this case, any resultant
combination also falls within the scope of the present
disclosure.
[0133] The present disclosure is useful in autonomous driving
vehicles usable as taxis or the like.
* * * * *